Jefferson Elementary School

Preparing the children of today for tomorrow...


  • Summer Hours will be from 9am to 3pm. 

    The office will be closed on July 25th and August 22nd. 

    Registration will now take place at a central location.  If you need to register your child for the 2019-2020 school year please click HERE to view directions.  Thank you!


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  • Principal 
    Principal's Secretary
    School Counselor/ Anti-Bullying Specialist
    Human Resources Manager/ District Anti-Bullying Coordinator
    Phone: 973-584-8955
    Fax: 973-584-4380
    Absence Verification: 973-584-8957
    School Hours: 8:50 AM - 3:20 PM
    Delayed Opening: 10:50 AM - 3:20 PM
    Early Dismissal: 8:50 AM - 1:40 PM
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  • Week at a Glance

    Click HERE to read this week's events at Jefferson School.  Be sure to scroll to the second page for all PTA updates as well.  Thank you for your interest in Jefferson School where we "Carry on Koala Kindness!"

    Available Flyers  

                            Summer Work       Summer Math Log       Summer ELA Log  

                                                   Library Reading Program                              



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  • Open House Incoming PreK-4!
    Thursday, August 29th 2019
    from 10am - 2pm 

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  •  Kindergarten Orientation 2019 
    Click HERE for our Frequently Asked Questions!

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  • Supply Lists for the 2019 - 2020 School Year:


    Grade 1

    Grade 2

    Grade 3

    Grade 4


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Principal's Message

  • Welcome

    Welcome to the Jefferson School Website!  Thank you for visiting.

    We are a PK-4 school located in beautiful Succasunna, NJ.  There are currently about 360 children attending, along with about 60 staff members.  At Jefferson School we are most proud of our commitment to Koala Kindness!  Students work with our motto "ROCKS" (Respect Others, self, environment by being Courteous, Kind, and Safe) in everything they do. Our children demonstrate growth in academic, social and emotional skills on a daily basis.

    We believe that learning is a Shared Responsibility.  At Jefferson, we are proud of our partnerships with the PTA, Community School, and many other programs that allow our children to rise to their potential.  Please enjoy exploring our website.  You can find a current "Week at a Glance" newsletter under the tab Our School.  

    Please feel free to reach out if you have any further questions regarding Jefferson School!


    Melissa Cosgrove

    Principal of Jefferson School


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